{"id":11168,"date":"2023-08-25T00:00:00","date_gmt":"2023-08-25T00:00:00","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/jak-funguje-modem-wifi\/"},"modified":"2023-08-25T00:00:00","modified_gmt":"2023-08-25T00:00:00","slug":"jak-funguje-modem-wifi","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-funguje-modem-wifi\/","title":{"rendered":"Jak funguje modem WiFi?"},"content":{"rendered":"
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WiFi se v na\u0161em st\u00e1le v\u00edce digitalizovan\u00e9m sv\u011bt\u011b st\u00e1v\u00e1 nezbytnost\u00ed. Pro p\u0159\u00edstup k internetu na na\u0161ich notebooc\u00edch, mobiln\u00edch telefonech, tabletech a dal\u0161\u00edch za\u0159\u00edzen\u00edch se spol\u00e9h\u00e1me na WiFi. Zaj\u00edmalo v\u00e1s v\u0161ak n\u011bkdy, jak WiFi vlastn\u011b funguje? Jak konkr\u00e9tn\u011b n\u00e1m WiFi modem umo\u017e\u0148uje bezdr\u00e1tov\u00e9 p\u0159ipojen\u00ed k internetu? Abychom v\u00e1m pomohli tuto technologii l\u00e9pe pochopit, probereme v tomto p\u0159\u00edsp\u011bvku specifika modemu WiFi a odpov\u00edme na n\u011bkter\u00e9 souvisej\u00edc\u00ed ot\u00e1zky. Vy\u017eaduje modem WiFi router? <\/p>\n

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Zjednodu\u0161en\u011b \u0159e\u010deno, WiFi modem a sm\u011brova\u010d jsou dv\u011b r\u016fzn\u00e1 za\u0159\u00edzen\u00ed, kter\u00e1 se v\u0161ak \u010dasto dod\u00e1vaj\u00ed jako jeden celek. Modem p\u0159ij\u00edm\u00e1 a dod\u00e1v\u00e1 data prost\u0159ednictv\u00edm kabelov\u00e9 nebo telefonn\u00ed linky a m\u00e1 na starosti nav\u00e1z\u00e1n\u00ed spojen\u00ed mezi va\u0161\u00ed dom\u00e1c\u00ed s\u00edt\u00ed a poskytovatelem internetov\u00fdch slu\u017eeb (ISP). Sm\u011brova\u010d m\u00e1 naproti tomu na starosti vytvo\u0159en\u00ed m\u00edstn\u00ed s\u00edt\u011b ve va\u0161em dom\u011b, kter\u00e1 umo\u017e\u0148uje p\u0159ipojen\u00ed n\u011bkolika za\u0159\u00edzen\u00ed k internetu najednou. Sm\u011brova\u010d je tedy nutn\u00fd k bezdr\u00e1tov\u00e9mu p\u0159enosu tohoto p\u0159ipojen\u00ed do dal\u0161\u00edch za\u0159\u00edzen\u00ed ve va\u0161\u00ed dom\u00e1cnosti, i kdy\u017e p\u0159ipojen\u00ed k internetu m\u016f\u017ee poskytnout modem WiFi. Z\u00edsk\u00e1te WiFi s modemem? <\/p>\n

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2. Ano, modem WiFi m\u016f\u017ee va\u0161im za\u0159\u00edzen\u00edm poskytnout p\u0159ipojen\u00ed WiFi, ale pouze v p\u0159\u00edpad\u011b, \u017ee m\u00e1 zabudovan\u00fd bezdr\u00e1tov\u00fd sm\u011brova\u010d. D\u00edky tomu se va\u0161e za\u0159\u00edzen\u00ed mohou p\u0159ipojit k internetu bez pou\u017eit\u00ed dal\u0161\u00edho hardwaru, proto\u017ee modem m\u00e1 schopnost vys\u00edlat bezdr\u00e1tov\u00fd sign\u00e1l. Ne ka\u017ed\u00fd modem v\u0161ak tuto funkci m\u00e1, proto je nezbytn\u00e9 si p\u0159ed koup\u00ed modemu prohl\u00e9dnout jeho specifikace a ujistit se, \u017ee m\u00e1 vestav\u011bn\u00fd WiFi router, pokud to vy\u017eadujete. Jak modemov\u00e9 za\u0159\u00edzen\u00ed funguje? <\/p>\n

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3. Term\u00edn „modem“ ozna\u010duje za\u0159\u00edzen\u00ed, kter\u00e9 p\u0159ev\u00e1d\u00ed digit\u00e1ln\u00ed data z po\u010d\u00edta\u010de nebo jin\u00fdch za\u0159\u00edzen\u00ed na analogov\u00e9 sign\u00e1ly, kter\u00e9 mohou b\u00fdt doru\u010deny p\u0159es komunika\u010dn\u00ed kan\u00e1l, jako je telefonn\u00ed linka nebo kabel. Pot\u00e9 tyto analogov\u00e9 sign\u00e1ly demoduluje zp\u011bt na digit\u00e1ln\u00ed data, kter\u00fdm po\u010d\u00edta\u010d nebo jin\u00e1 za\u0159\u00edzen\u00ed rozum\u00ed. Modem WiFi pln\u00ed oba tyto \u00fakoly a m\u00e1 tak\u00e9 zabudovan\u00fd bezdr\u00e1tov\u00fd sm\u011brova\u010d, kter\u00fd umo\u017e\u0148uje p\u0159ipojen\u00ed WiFi. <\/p>\n

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4. Je modem lep\u0161\u00ed ne\u017e sm\u011brova\u010d? Je nespravedliv\u00e9 srovn\u00e1vat modem se sm\u011brova\u010dem, proto\u017ee maj\u00ed odli\u0161n\u00e9 funkce. Sm\u011brova\u010d je nutn\u00fd k nastaven\u00ed m\u00edstn\u00ed s\u00edt\u011b v dom\u00e1cnosti a k bezdr\u00e1tov\u00e9 distribuci internetov\u00e9ho p\u0159ipojen\u00ed, zat\u00edmco modem je nutn\u00fd k p\u0159ipojen\u00ed dom\u00e1c\u00ed s\u00edt\u011b k internetu. Je v\u0161ak d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti, \u017ee n\u011bkter\u00e9 nejmodern\u011bj\u0161\u00ed sm\u011brova\u010de nab\u00edzej\u00ed dal\u0161\u00ed funkce, jako je lep\u0161\u00ed zabezpe\u010den\u00ed, snadn\u011bj\u0161\u00ed spr\u00e1va s\u00edt\u011b a rychlej\u0161\u00ed WiFi. Proto zat\u00edmco v\u011bt\u0161in\u011b u\u017eivatel\u016f m\u016f\u017ee sta\u010dit jednoduch\u00fd modem, lid\u00e9 se zvl\u00e1\u0161tn\u00edmi n\u00e1roky nebo velk\u00fdm mno\u017estv\u00edm za\u0159\u00edzen\u00ed mohou profitovat z v\u00fdkonn\u011bj\u0161\u00edho sm\u011brova\u010de. <\/p>\n

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WiFi modem je nezbytn\u00fd pro umo\u017en\u011bn\u00ed bezdr\u00e1tov\u00e9ho p\u0159ipojen\u00ed k internetu v na\u0161ich dom\u00e1cnostech, abychom to shrnuli. D\u00edky kombinaci funkc\u00ed modemu a sm\u011brova\u010de n\u00e1m umo\u017e\u0148uje p\u0159ipojit k internetu mnoho za\u0159\u00edzen\u00ed bez pou\u017eit\u00ed dr\u00e1tov\u00e9ho p\u0159ipojen\u00ed. Znalost funkce modemu WiFi n\u00e1m umo\u017e\u0148uje vybrat nejlep\u0161\u00ed za\u0159\u00edzen\u00ed pro na\u0161e jedine\u010dn\u00e9 pot\u0159eby a zaji\u0161\u0165uje spolehlivou a bezprobl\u00e9movou pr\u00e1ci s WiFi.<\/p><\/div>\n

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FAQ<\/div>\n
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Je modem d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e sm\u011brova\u010d?<\/div>\n

Modem i sm\u011brova\u010d jsou d\u016fle\u017eit\u00e9 sou\u010d\u00e1sti p\u0159i z\u0159izov\u00e1n\u00ed internetov\u00e9ho p\u0159ipojen\u00ed, ale jejich v\u00fdznam se li\u0161\u00ed v z\u00e1vislosti na situaci a individu\u00e1ln\u00edch po\u017eadavc\u00edch u\u017eivatele. <\/p>\n

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\u00dakol p\u0159ev\u00e9st digit\u00e1ln\u00ed data od poskytovatele internetov\u00fdch slu\u017eeb (ISP) na sign\u00e1l, kter\u00fd lze doru\u010dit po ur\u010dit\u00e9m typu komunika\u010dn\u00edho veden\u00ed, jako je koaxi\u00e1ln\u00ed kabel nebo telefonn\u00ed linka, pln\u00ed modem, zn\u00e1m\u00fd tak\u00e9 jako modul\u00e1tor-demodul\u00e1tor. Ten z\u00edsk\u00e1v\u00e1 data od poskytovatele internetov\u00fdch slu\u017eeb a p\u0159ev\u00e1d\u00ed je do form\u00e1tu srozumiteln\u00e9ho pro va\u0161e za\u0159\u00edzen\u00ed. K p\u0159ipojen\u00ed dom\u00e1c\u00ed s\u00edt\u011b k internetu je tedy zapot\u0159eb\u00ed modem. <\/p>\n

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Na druh\u00e9 stran\u011b m\u00e1 sm\u011brova\u010d na starosti koordinaci komunikace mezi za\u0159\u00edzen\u00edmi va\u0161\u00ed dom\u00e1c\u00ed s\u00edt\u011b. T\u00edm, \u017ee propojen\u00fdm za\u0159\u00edzen\u00edm p\u0159id\u011bl\u00ed odli\u0161n\u00e9 IP adresy a umo\u017en\u00ed jim vz\u00e1jemnou komunikaci, vytvo\u0159\u00ed m\u00edstn\u00ed s\u00ed\u0165 (LAN). Sm\u011brova\u010d nav\u00edc nab\u00edz\u00ed bezpe\u010dnostn\u00ed opat\u0159en\u00ed, jako jsou firewally, kter\u00e9 chr\u00e1n\u00ed s\u00ed\u0165 p\u0159ed neleg\u00e1ln\u00edm p\u0159\u00edstupem, a z\u00e1rove\u0148 umo\u017e\u0148uje n\u011bkolika za\u0159\u00edzen\u00edm sd\u00edlet jedno p\u0159ipojen\u00ed k internetu. <\/p>\n

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Ob\u011b hardwarov\u00e9 sou\u010d\u00e1sti jsou nezbytn\u00e9 k vytvo\u0159en\u00ed internetov\u00e9ho p\u0159ipojen\u00ed, i kdy\u017e v z\u00e1vislosti na okolnostech m\u016f\u017ee m\u00edt modem nebo sm\u011brova\u010d v\u011bt\u0161\u00ed nebo men\u0161\u00ed v\u00fdznam. Modem nemus\u00ed b\u00fdt nutn\u00fd, pokud nap\u0159\u00edklad ve\u0161ker\u00e9 va\u0161e p\u0159ipojen\u00ed k internetu poch\u00e1z\u00ed z mobiln\u00edch nebo mobiln\u00edch datov\u00fdch s\u00edt\u00ed, a sm\u011brova\u010d by va\u0161i dom\u00e1c\u00ed s\u00ed\u0165 zvl\u00e1dl v pohod\u011b. Na druhou stranu je modem nezbytn\u00fd pro transformaci sign\u00e1lu poskytovatele internetu, pokud m\u00e1te kabelov\u00e9 p\u0159ipojen\u00ed k internetu. Funguj\u00edc\u00ed a bezpe\u010dn\u00e1 dom\u00e1c\u00ed s\u00ed\u0165 v\u011bt\u0161inou vy\u017eaduje modem i sm\u011brova\u010d. <\/p>\n<\/div>\n

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Je lep\u0161\u00ed m\u00edt samostatn\u00fd modem a sm\u011brova\u010d?<\/div>\n

Ano, m\u00edt samostatn\u00fd modem a sm\u011brova\u010d je v\u00fdhodn\u011bj\u0161\u00ed ne\u017e pou\u017e\u00edvat za\u0159\u00edzen\u00ed, kter\u00e9 ob\u011b funkce kombinuje. Odd\u011blen\u00e1 za\u0159\u00edzen\u00ed poskytuj\u00ed konfiguraci dom\u00e1c\u00ed s\u00edt\u011b v\u011bt\u0161\u00ed flexibilitu a lep\u0161\u00ed v\u00fdkon. <\/p>\n

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Va\u0161e dom\u00e1c\u00ed s\u00ed\u0165 mus\u00ed b\u00fdt p\u0159ipojena prost\u0159ednictv\u00edm modemu k internetov\u00e9 slu\u017eb\u011b poskytovan\u00e9 va\u0161\u00edm poskytovatelem internetov\u00fdch slu\u017eeb (ISP). Modem m\u011bn\u00ed p\u0159\u00edchoz\u00ed sign\u00e1l od poskytovatele internetu tak, aby jej va\u0161e za\u0159\u00edzen\u00ed mohla pou\u017e\u00edvat a rozum\u011bt mu. Sm\u011brova\u010d m\u00e1 naopak na starosti usm\u011br\u0148ov\u00e1n\u00ed s\u00ed\u0165ov\u00e9ho provozu mezi r\u016fzn\u00fdmi za\u0159\u00edzen\u00edmi p\u0159ipojen\u00fdmi k va\u0161\u00ed dom\u00e1c\u00ed s\u00edti. <\/p>\n

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Pomoc\u00ed r\u016fzn\u00fdch za\u0159\u00edzen\u00ed m\u00e1te v\u011bt\u0161\u00ed kontrolu nad funk\u010dnost\u00ed a mo\u017enostmi sv\u00e9 s\u00edt\u011b. M\u016f\u017eete si vybrat modem, kter\u00fd je speci\u00e1ln\u011b vyroben pro druh internetov\u00e9ho p\u0159ipojen\u00ed, kter\u00e9 pou\u017e\u00edv\u00e1te, a zajistit si tak optim\u00e1ln\u00ed v\u00fdkon a kompatibilitu. M\u016f\u017eete si tak\u00e9 vybrat sm\u011brova\u010d, kter\u00fd m\u00e1 po\u017eadovan\u00fd dosah, rychlost a dal\u0161\u00ed funkce, jako je podpora VPN nebo rodi\u010dovsk\u00e1 kontrola. <\/p>\n

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Pou\u017eit\u00ed samostatn\u00e9ho modemu a sm\u011brova\u010de nav\u00edc usnad\u0148uje aktualizaci a \u0159e\u0161en\u00ed probl\u00e9m\u016f. V p\u0159\u00edpad\u011b probl\u00e9m\u016f s internetov\u00fdm p\u0159ipojen\u00edm je jednodu\u0161\u0161\u00ed ur\u010dit, zda je na vin\u011b probl\u00e9m s modemem nebo sm\u011brova\u010dem. Nav\u00edc m\u016f\u017eete upgradovat jedno za\u0159\u00edzen\u00ed, ani\u017e byste museli v prav\u00fd \u010das upgradovat ob\u011b. <\/p>\n

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Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee samostatn\u00fd modem a sm\u011brova\u010d v\u00e1m d\u00e1v\u00e1 v\u00edce mo\u017enost\u00ed pro upgrade a opravu dom\u00e1c\u00ed s\u00edt\u011b a tak\u00e9 v\u011bt\u0161\u00ed flexibilitu a lep\u0161\u00ed v\u00fdkon.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

WiFi se v na\u0161em st\u00e1le v\u00edce digitalizovan\u00e9m sv\u011bt\u011b st\u00e1v\u00e1 nezbytnost\u00ed. Pro p\u0159\u00edstup k internetu na na\u0161ich notebooc\u00edch, mobiln\u00edch telefonech, tabletech a dal\u0161\u00edch za\u0159\u00edzen\u00edch se spol\u00e9h\u00e1me na WiFi. Zaj\u00edmalo v\u00e1s v\u0161ak n\u011bkdy, jak WiFi vlastn\u011b funguje? Jak konkr\u00e9tn\u011b n\u00e1m WiFi modem umo\u017e\u0148uje bezdr\u00e1tov\u00e9 p\u0159ipojen\u00ed k internetu? Abychom v\u00e1m pomohli tuto technologii l\u00e9pe pochopit, probereme v tomto … \u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":1275,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-11168","post","type-post","status-publish","format-standard","hentry","category-networking"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/11168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/1275"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=11168"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/11168\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=11168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=11168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=11168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}